I've just had someone bashing Linux because of the 4GB max physical limits
for Intel architectures. I've told him to fuck off and buy an 64bit Alpha,
but he mentioned that BSDI can use all 64GB on a Xeon's 36bit addressing
range. Why is Linux limited to 4GB and BSDI can address 64GB ona Xeon?
Cheers,
Alex
AFAIK, that extra 4 bit of address space on the PPro and Xeon is not
linearly addressable, but is divided into banks of memory, and you
switch between them.
you can use that memory sure, but not without the ugly code to use
the bank-switching kludge/feature of PPro's and Xeon's.
if you find anyone crazy enough to waste money on 2GB+ of RAM for an
intel, tell me - i want to send them my CV.. 8^).
regards
-- Paul Jakma paul@clubi.ie http://hibernia.clubi.ie PGP5 key: http://www.clubi.ie/jakma/publickey.txt ------------------------------------------- Fortune: Ask five economists and you'll get five different explanations (six if one went to Harvard). -- Edgar R. Fiedler
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